Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Diaphragmatic paralysis laboratory findings
Introduction
Overview
Overview
Laboratory findings consistent with the diagnosis of diaphragmatic paralysis include reduced oxygen saturation in the supine position in unilateral and bilateral diaphragmatic paralysis and elevated the arterial partial pressure of carbon dioxide (PaCO2) in bilateral diaphragmatic paralysis. Hypoxemia may be seen in arterial blood gas in bilateral diaphragmatic paralysis.
Laboratory Findings
Laboratory Findings
- Complete blood count is usually done to rule out anemia as a cause of dyspnea.
- Thyroid tests are usually done because thyroid disease is usually associated with bilateral diaphragmatic paralysis.
- Laboratory findings consistent with the diagnosis of diaphragmatic paralysis include:[1]
- Reduced oxygen saturation in the supine position in unilateral and bilateral diaphragmatic paralysis.
- Elevated arterial partial pressure of carbon dioxide (PaCO2) in bilateral diaphragmatic paralysis.
- Hypoxemia may be seen in arterial blood gas in bilateral diaphragmatic paralysis.
- Â P(A-a) O2Â gradients may be normal if the cause of diaphragmatic paralysis is not related to underlying parenchymal lung disease.
- Based on the causes of diaphragmatic paralysis, more laboratory tests may be needed.
References
References
- ↑ Martinez FJ, Strawderman RL, Flaherty KR, Cowan M, Orens JB, Wald J (August 1999). “Respiratory response during arm elevation in isolated diaphragm weakness”. Am. J. Respir. Crit. Care Med. 160 (2): 480–6. doi:10.1164/ajrccm.160.2.9608096. PMID 10430717.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mahda Alihashemi M.D. [2] [3]